- http://www.jcrows.com/withoutnumbers.html
- http://rainforests.mongabay.com/amazon/amazon_people.html
- http://library.thinkquest.org/5128/tribes_am_page.html
- http://www.survivalinternational.org/about/amazontribes
- http://en.wikipedia.org/wiki/Amazon_rainforest
- http://www.tropical-plants-flowers-and-decor.com/index.html
- http://www.unique-southamerica-travel-experience.com/amazon-rainforest-climate.html